Three Sisters Playing Chess

The Game of Chess (Portrait of the artist's sisters playing chess) is a painting by Sofonisba Anguissola from 1555. Anguissola was 23 years old when she painted it.

It looks like a bit of a mismatch. I think the confident-looking elder sister (Lucia) is about to declare 'Check', maybe even 'Checkmate'. And the youngest (Europe) looks a bit of a mischief - she might tip the board over if her favourite sister (the stern-looking Minerva) is about to lose. Minerva's King looks a bit exposed and it's possible Lucia has captured the Black Queen and has it in her hand.

It looks like Minerva has her hand raised - is that a concession of defeat?

The painting is in the National Museum in Poznan, Poland. I hope nobody makes it into a jigsaw puzzle.